Barbara Patience Greenwell1 
From 24 April 1929, her married name became William-Powlett.4
Children of Barbara Patience Greenwell and Captain Newton James Wallop William-Powlett
- Ann Patience Wallop William-Powlett+4 b. 12 Feb 1930, d. 2 Aug 2019
- Oliver Newtown Wallop William-Powlett4 b. 1933, d. 7 Dec 2002
- Sarah Elizabeth Wallop William-Powlett+4 b. 23 Jun 1936, d. 26 Mar 2015
- [S37] BP2003 volume 2, page 1655. See link for full details for this source. Hereinafter cited as. [S37]
- [S3508] S. Thomson, “email: Kirwan Family,” e-mail message to BENR, 16 January 2009 – 12 February 2010. Hereinafter cited as “email: Kirwan Family.”
- [S37] BP2003. [S37]
- [S3546] Robin Johnson, “re: Johnson Family,” e-mail message to BENR, 31 January 2009. Hereinafter cited as “re: Johnson Family.”
Ann Patience Wallop William-Powlett1,2 
From 10 October 1953, her married name became Thistlethwayte.2 She lived in 2003 at Summerhayes, Throwleigh, Devon, England.2
Children of Ann Patience Wallop William-Powlett and Lt.-Col. Thomas Noel Thistlethwayte
- Rupert Thomas Newton Thistlethwayte+2 b. 19 Jan 1955
- Jane Camilia Thistlethwayte+2 b. 2 Jun 1957
- [S3546] Robin Johnson, “re: Johnson Family,” e-mail message to BENR, 31 January 2009. Hereinafter cited as “re: Johnson Family.”
- [S37] BP2003 volume 2, page 3191. See link for full details for this source. Hereinafter cited as. [S37]
- [S466] Notices, The Telegraph, London, UK. Hereinafter cited as The Telegraph.
Oliver Newtown Wallop William-Powlett1,2 
He was educated at Eton College, Windsor, Berkshire, England.2 He gained the rank of Lieutenant in the Royal Naval Reserves.2 He held the office of Deputy Lieutenant (D.L.) of Devon.2 He held the office of Justice of the Peace (J.P.) for Devon.2 He held the office of High Sheriff of devon in 1989.2
Dr. unknown McBride1
Child of Dr. unknown McBride
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
Mary Wallop William-Powlett1
From 30 July 1957, her married name became Janson.1 She lived in 2003 at 6 Edwardes Square, London, England.2
Children of Mary Wallop William-Powlett and Jonathan Michael Janson
- Nicola Claire Wallop Janson+3 b. 29 May 1959
- Lucinda Katrina Janson+3 b. 7 May 1961
- Sara Arabella Janson3 b. 28 Mar 1965
- [S3546] Robin Johnson, “re: Johnson Family,” e-mail message to BENR, 31 January 2009. Hereinafter cited as “re: Johnson Family.”
- [S37] BP2003 volume 2, page 3192. See link for full details for this source. Hereinafter cited as. [S37]
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
William Albert Ussher1 
He gained the rank of officer in the Royal Naval Reserve.1
- [S47] BIFR1976 page 1159. See link for full details for this source. Hereinafter cited as. [S47]
Pansy Olivia Wallop William-Powlett1,2 
From 23 March 1950, her married name became Wood.3 She lived in 2003 at Coombe Down, Beaminster, Dorset, England.3
Children of Pansy Olivia Wallop William-Powlett and Lt.-Col. John Clairmont Wood
- Charlotte Knollys Olivia Wood+3 b. 16 Mar 1953
- Giles Powlett Clairmont Wood+3 b. 3 Nov 1954
- Louisa Ella Delamotte Wood+3 b. 22 Jul 1959
- [S3546] Robin Johnson, “re: Johnson Family,” e-mail message to BENR, 31 January 2009. Hereinafter cited as “re: Johnson Family.”
- [S3508] S. Thomson, “email: Kirwan Family,” e-mail message to BENR, 16 January 2009 – 12 February 2010. Hereinafter cited as “email: Kirwan Family.”
- [S37] BP2003 volume 2, page 3192. See link for full details for this source. Hereinafter cited as. [S37]
- [S466] Notices, The Telegraph, London, UK. Hereinafter cited as The Telegraph.
Barton Roger Wallop William-Powlett1 
He was educated at Winchester College, Winchester, Hampshire, England.2 He graduated from Trinity College, Oxford University, Oxford, Oxfordshire, England.2 He was educated at Massachusetts Institute of Technology, Cambridge, Massachusetts, U.S.A.G.1
Children of Barton Roger Wallop William-Powlett and Judith Silk
- Patrick Henry Wallop William-Powlett2 b. 13 Mar 1964
- Katherine Wallop William-Powlett2 b. 28 Sep 1965
- Thomas Wallop William-Powlett2 b. 28 May 1968
- [S3546] Robin Johnson, “re: Johnson Family,” e-mail message to BENR, 31 January 2009. Hereinafter cited as “re: Johnson Family.”
- [S37] BP2003 volume 2, page 3192. See link for full details for this source. Hereinafter cited as. [S37]
- [S466] Notices, The Telegraph, London, UK. Hereinafter cited as The Telegraph.
Judith Silk1
From 29 August 1962, her married name became William-Powlett.1
Children of Judith Silk and Barton Roger Wallop William-Powlett
- Patrick Henry Wallop William-Powlett2 b. 13 Mar 1964
- Katherine Wallop William-Powlett2 b. 28 Sep 1965
- Thomas Wallop William-Powlett2 b. 28 May 1968
Jonathan Michael Janson1,2 
Children of Jonathan Michael Janson and Mary Wallop William-Powlett
- Nicola Claire Wallop Janson+4 b. 29 May 1959
- Lucinda Katrina Janson+2 b. 7 May 1961
- Sara Arabella Janson2 b. 28 Mar 1965
- [S3546] Robin Johnson, “re: Johnson Family,” e-mail message to BENR, 31 January 2009. Hereinafter cited as “re: Johnson Family.”
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S37] BP2003 volume 2, page 3192. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]